Valve



P. H. DAVIS.

VALVE.

APPLICATION FILED SEPT. 16.1919.

PamnIedApr. 19, 1921.

ATTORNEY AErler crisis..

PATRICK HENRY Davis, or Nawj'YeRK, N. Y., .assioNertmolTrrn HAMILTON-Low COMPANY, or JERSEY CITY, NEW JERSEY, e. ooRroRA'rroNor NEW JERSEY.

VALVE.

Specification of Letters Patent. Ptejfitd Api. 1921.

Apeueation inea september 1e, 191e.V serial No. 324,19o.

To all 7.0/L07771t't may concern Be it known that l, Farmen HENRY DAVIS, a citizen of theUnited States, 4residing at 559 West 190th street, cityv,rcouvnty, andv State of N ew York, have invented new and useful Improvements in Valves, of which the following isaspeciication.

My Vinvention relates to valves and particularly to a valve adapted for use in a dish washing machine, although itistobe understood that the invention is not limited to this adaptation.

An object of my invention is the provision of a pivoted er swinging valve which is adjustable to compensate for wear or faulty construction, whereby 'a tightseating of the valve is insured. 1

l will describe one form `of valve embodying my inventionuand will thenv point out the novel features thereof in claims.

In the accompanying' drawings, Figure 1V is a view showing in side elevation one term of valve embodying my invention applied to a portion et a tank forming part ot a dish washing machine.

Fig. 2 is a View showin@- in front elevation, the valve shown in ig. 1 detached from the tank.

Fig. 3 is a view showing in bottom plan the valve shown in the preceding views.

Fig. et is a detailed perspective view of the adjustable cam.

Referring specifically to the drawings in which similar reference characters refer to similar parts of each oi the several views, C designates generally a casing, including` a top wall c formed with an opening 11, the wall of which is threaded to receive a pipe (not shown) through which water is ad mitted to the casing. c designates the front wall of the casing C, which, as shown in Fig. 2, is formed with a relatively large opening 12 and smaller openings for the reception of bolts 13 for securing the casing toa wall T constituting a portion oli' the tank of a dish washing machine. T he opening 12, which serves as the outlet opening` el the valve casing, registers with a port 11i formed in the wall T, within which port is seated a bushing having an annular shoulder 15 which provides a seat for a valve V. The opening 12 is of such shape as to permit free and unrestricted movement of the valve, as clearly shown in Fig. 2. p

The valve V is substantially rlat and of ovate contour in outline, the pointed end thereof being provided upon its inner side, with a collar 16 te receive the squared end or' a stem S. As shown in Figs. 1 and 8, the casing C is provided'with a rear wall 17 which is inclined downwardly and outwardly, and is formed with an opening of relatively large area through which the vad-l justing means and stem S are adaptedy to extend. This opening is covered by a plate l? secured to the casing by means ofy bolts 18. The plate yP vcarries a sleeve 19l which 1 loosely receives 'the stem S to permit rotary and longitudinalsliding movement of the, stem therein-and to form a substantial support for the'stem when operating the valve. The outer end of the stem S projects beyond the sleeve 19 a distance suiiicientto allow the required longitudinal movement thereof and to receive a handle H which is liXed to the stem by a collar 2O and a screw 21..

From the foregoing description it will be seen that the valve V is movable transversely of the port 14 to open and close the same by partially rotating the stem in one direction or the other through the handle H. It will be understood. that the walls oi the opening 12 limit the movement of the valve V in either direction. By virtue of the longitudinal movement or' the stem S within the sleeve 19, the valve V can be adjusted laterally to compensate for wear or any inaccuracy in the construction of the parts of the valve, and yet secure the proper seating thereof.

T0 insure the tight seatingef the valve, I provide the inner side thereolZ with a beveled lug` 22 and a cam 23 is disposed in the path of the lug and adapted to torce the same with the valve into tight engagement with the seat 15 during movement of the valve to closed position. The lug 22 is iixed to the valve V, but the cam 23 is adjustable toward and away from the valve by means of a mounting comprising an eX- tension 24: formed on the plate P which is bored longitudinally at three different points to slidably receive pegs or pins 25, 25 and 26. The pins 25 and 25 lit within suitable openings formed in the cam 23, and act as guides and supporting means therefor, as will be understood. The pin 26 is independent of the cam 23 and serves to force the cam in the direction of the valveV under the action of an adjusting screw 27 which is threadedly mounted in the veXtension 24 and abuts the inner end of the pin 26, as clearly shown in Fig. 3.'

The operation of the valve may be briefly described as follows: v

With the valve V in the open position as shown in dashrlines in Fig. 2, the lug 22 does not engage the cam 23. However, during movement of the. valve to closed position, they lug 22vengages the cam 23 just before the valve reaches its seat, whereby the surface of the lug 22 rides upon the inclined surface of the cam so that upon continued movement ofl the valve, the cam forces the latter into tight engagement with the shoulder l5. `,Should the valve become worn'aiter continued use so that it fails to properly seat .upon the bead 15, the cam 28 is moved inwardly to the desired position by means of the screw 27 until the valve is again thrown into tight engagement'with its seat upon moving the same to closed position.

Although I have herein shown and described only one form of valve embodying my invention, it is to be understood that various changes and modifications may be made herein without departing Afrom the spirit of thev invention and the spirit and scope of Jthe appended claims.

What I claim is:

l. A valve comprising a casing having inlet and outlet openings therein, a valve con- I bored extension on said casing, a cam disposed in the path of movement of said beveled extension, pegs carried by the cam and slidable in said bored extension, a pin also slidable in said bored extension into contact with said cam and a screwy threaded inthe casing and engageablewith said pintor adjusting the positionof said cam.

` 2. A valve, comprising a casing havingv inlet and outlet openings therein, ya valve controlling one of said openingsand mounted for lateral` and oscillatory movements, a beveled extension formed on said valve, a bored extension on said casing, a cam disposed in the path of movement of said bev?V eled extension, said cam being mounted for bodily movement toward and from said bored extension, a pair of pegs carried by the cam and slidable in said bored exten? sion, a pin also slidable in said extension and adapted to bear on said cam forv limiting its movement in` one direction, and means for adjusting said last pin. v

In testimony whereof I have signed my name to this specification.

PATRICK HENRY DAVIS. 

